<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div id="app">
        <com></com>
    </div>
    <template id="com">
        <button @click="handleClick">{{msg}}</button>
    </template>
    <script src="../vue.js"></script>
    <script>
        let com={
            template:'#com',
            data () {
                return {
                    msg:'按钮'
                }
            },
            methods: {
                handleClick(){
                    console.log(1);
                }
            }
        }
        new Vue({
            el:'#app',
            components: {
                com,
            }
        })
    </script>
</body>
</html>